docs: def calculate_sunrise_sunset(self, month, day, depression=0.833,
                                   is_solar_time=False):
          """Calculate sunrise, noon and sunset.
  
          Return:
              A dictionary. Keys are ("sunrise", "noon", "sunset")
          """
          datetime = DateTime(month, day, hour=12, leap_year=self.is_leap_year)
  
          return self.calculate_sunrise_sunset_from_datetime(datetime,
                                                             depression,
                                                             is_solar_time)